Hot-blast stove



UNITED STATES PATENT OFFICE.,

FRED. W. GORDON, OF PITTSBURG, PENSYLVANIA.

HOT-BLAST STOVE.

SPECIFICATION forming part of Letters Patent No. 291,186, dated January'l, 1884.

Application filed September 24, 1883. (No model.)

, provements inHot-Blast Stoves, of which the following is a speciication.

This invention pertains to regenerative hotblast stoves constructed with an interior filling of lire-brick or other refractory material.

1o In these stoves the regeuerator portion consists of an immense number of parallel vert-ical iiues built of brick. The stovesare often built to a height of sixty or eighty feet, and the walls between the ues are quite thin.

Any derangement of the brick-work due to warpage, 8mo., is likely to result in the tumbling down of some ot' thewalls--a matter of a very serious nature, as they are very inaccessible for repairs. The tumbling of a single 2o brick into one of the iues is liable, even if it does not unsettle the walls, to result in the clogging of that particular iue, andY a succession of these accidents may, to a greater or less extent, deprive t-he stove of its regenerative area of flue.

Previous to my present invention, I am not aware that it has been considered possible to so bind the brick-work in the multiiiue stoves, as to absolutely prohibit the movement of a 3o loosened brick into a flue.

My invention relates particularly to a peculiar bond of the brick-work, whereby a brick perfectly loose in its seating cannot become to any serious extent displaced from its proper 3 5 position.

In the accompanying drawings, Figure 1 represents in.plan part of the multitlue portion of-aire-brick hot-blast stove constructed in accordance with my improvement, and Fig.

l .fio 2 represents the same in perspective.

In the drawings, A represent-s the i'lues, B,

the bricks of which the fine-walls are built, and C the intersections of the walls forming theflues. The walls are built of at bricks having a width equal to the thickness of the walls desired, and having a length equal to the width of the iiue plus one-half the thickness of the wall. The iues are square in section. Each brick has one of its ends abutting section 0, while the other end of the brick abuts against and covers the side joint of two similarly-abutting bricks in the wall, at right angles to it, as clearlyshown in the drawings. Thus each brick reaches clear across the iiue and half-wayinto th'e flue-wall, and the brick, even if loose, cannot be pried around so as to fall lnto the liuc.l The arrangementis clearly shown in the drawings. The alternate courses are reversed-that is, the end joint of the course at the intersections come at right angles to each other in the alternate courses. In Fig; 1, the lower right-hand corner of the View 'shows the upper course partly broken away, exhibiting the course immediately below it. (Shown in the dark tint in the drawings.)

It will be seen that if the brick be headed into the wall at the intersectiomthe brick immediately above it will be headed in at the 0pposite end.

I claim as my invention- A multiiiue regenerator for hot-blast stoves, formed of closed-sided lues constructed of bricks of uniform size, each brick abutting with one end against the end of another brick, and with its other end against the side joint of two similarly-abutting bricks, as shown and described.

FRED. IV. GORDON.

Witnesses:

THOMAS DEEGAN, FRANK E. FIcKEs.

against the end of another brick in the inter- L 

